Strong-Driving-Assisted Multipartite Entanglement in Cavity QED

Abstract

We propose a method of generating multipartite entanglement by considering the interaction of a system of $N$ two-level atoms in a cavity of high quality factor with a strong classical driving field. It is shown that, with a judicious choice of the cavity detuning and the applied coherent field detuning, vacuum Rabi coupling produces a large number of important multipartite entangled states. It is even possible to produce entangled states involving different cavity modes. Tuning of parameters also permits us to switch from Jaynes-Cummings to anti-Jaynes-Cummings–like interaction.